diff --git a/CMakeLists.txt b/CMakeLists.txt
index bcaaca9..6124cac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,6 +29,7 @@ set(INTERFACES_DIR ${CMAKE_SOURCE_DIR}/bsl/csl/interfaces)
 ####################################################################################################
 include(${PROJECT_DEFS})
 add_subdirectory(bsl)
+add_subdirectory(drivers/led)
 
 set(BSL_HEADER_FILE ${CMAKE_SOURCE_DIR}/bsl/raspberry/bsl_raspberry.hpp)
 
diff --git a/bsl/nucleo_f042k6/bslConfig.cmake b/bsl/nucleo_f042k6/bslConfig.cmake
index dbe7bbc..83da8a6 100644
--- a/bsl/nucleo_f042k6/bslConfig.cmake
+++ b/bsl/nucleo_f042k6/bslConfig.cmake
@@ -76,3 +76,4 @@ list(APPEND EXTRA_LIBS sub::translator)
 list(APPEND EXTRA_LIBS sub::sources)
 #list(APPEND EXTRA_LIBS sub::gpio) # TODO : PLease add this again.
 list(APPEND EXTRA_LIBS sub::delay)
+list(APPEND EXTRA_LIBS sub::led)
diff --git a/bsl/nucleo_f042k6/bsl_nucleo_f042k6.cpp b/bsl/nucleo_f042k6/bsl_nucleo_f042k6.cpp
index bb7dedc..2c0b349 100644
--- a/bsl/nucleo_f042k6/bsl_nucleo_f042k6.cpp
+++ b/bsl/nucleo_f042k6/bsl_nucleo_f042k6.cpp
@@ -5,6 +5,7 @@ Nucleo_f042k6::Nucleo_f042k6()
 {
 	stmStart();
 }
+
 Nucleo_f042k6::~Nucleo_f042k6(){}
 
 void Nucleo_f042k6::init()
@@ -12,18 +13,24 @@ void Nucleo_f042k6::init()
 	ledPin.init();
 	ledPin.setMode(Pin::mode::output);
 	ledPin.setSpeed(Pin::speed::fast);
-
+		
+	//Led ledGreen;
+	
+	/*
 	pin_a0.init();
 	pin_a0.setMode(Pin::mode::input);
 	pin_a0.setSpeed(Pin::speed::slow);
 	pin_a0.setPullUpDonw(Pin::pullUpDown::pullDown);
+	*/
 }
 
 void Nucleo_f042k6::running()
 {
-		ledPin.write(true);
+		STM_Pin<Pin_no::pin_3, GPIO_Port::Port_B_base_address> ledPin;
+		Led ledGreen(&ledPin);
+		ledGreen.on();
 		delay.ms(200); 
-		ledPin.write(false);
+		ledGreen.off();
 		delay.ms(200); 
 }
 
diff --git a/bsl/nucleo_f042k6/bsl_nucleo_f042k6.hpp b/bsl/nucleo_f042k6/bsl_nucleo_f042k6.hpp
index ad00c00..d53c102 100644
--- a/bsl/nucleo_f042k6/bsl_nucleo_f042k6.hpp
+++ b/bsl/nucleo_f042k6/bsl_nucleo_f042k6.hpp
@@ -4,6 +4,7 @@
 #include "../csl/interfaces/pin.hpp" 
 #include "../csl/interfaces/delay.hpp" 
 #include "../csl/stm32f042/Inc/stm_pin.hpp"
+#include "../../drivers/led/led.hpp"
 #include "stm32f0xx_csl.h"
 
 class Nucleo_f042k6
@@ -16,12 +17,12 @@ class Nucleo_f042k6
 	void init(); 
 	void running(); 
 	
+	
 	private : 
 	Delay delay; 
-	
+	//STM_Pin<Pin_no::pin_0, GPIO_Port::Port_A_base_address> pin_a0;
 	STM_Pin<Pin_no::pin_3, GPIO_Port::Port_B_base_address> ledPin;
-	STM_Pin<Pin_no::pin_0, GPIO_Port::Port_A_base_address> pin_a0;
-
+	//Led ledGreen(&STM_Pin<Pin_no::pin_3, GPIO_Port::Port_B_base_address>); 
 }; 
 
 #endif /* BSL_NUCLEO_F042K6_H */
diff --git a/drivers/led/CMakeLists.txt b/drivers/led/CMakeLists.txt
new file mode 100644
index 0000000..be6b2df
--- /dev/null
+++ b/drivers/led/CMakeLists.txt
@@ -0,0 +1,7 @@
+add_library(ledDriver led.cpp)
+
+target_compile_options(ledDriver PRIVATE ${C_FLAGS})
+target_compile_definitions(ledDriver PRIVATE ${C_DEFS})
+target_include_directories(ledDriver PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+
+add_library(sub::led ALIAS ledDriver)
diff --git a/drivers/led/led.cpp b/drivers/led/led.cpp
index 06d11ab..1749cf4 100644
--- a/drivers/led/led.cpp
+++ b/drivers/led/led.cpp
@@ -1,18 +1,30 @@
 #include "led.hpp"
 
+Led::Led(Pin* pin_ptr) 
+{
+	pin = pin_ptr;
+	pin->init();
+	pin->setMode(Pin::mode::output);
+	pin->setSpeed(Pin::speed::fast);
+}
+
+Led::~Led() 
+{
+
+}
 
-void Pin::on()
+void Led::on()
 {
-	pin.write(true);
+	pin->write(true);
 }
  
-void Pin::off()
+void Led::off()
 {
-	pin.write(false);
+	pin->write(false);
 }
  
-void Pin::toggle()
+void Led::toggle()
 {
-	pin.toggle();
+	pin->toggle();
 }
  
diff --git a/drivers/led/led.hpp b/drivers/led/led.hpp
index cba5706..2a6db6d 100644
--- a/drivers/led/led.hpp
+++ b/drivers/led/led.hpp
@@ -1,13 +1,14 @@
-#ifndef __LED_HPP
-#define __LED_HPP
+#ifndef _LED_HPP
+#define _LED_HPP
 
 // TODO : Change Cmake to include "pin.hpp"
 #include "../../bsl/csl/interfaces/pin.hpp"
+#include "../../bsl/csl/interfaces/delay.hpp"
 
 class Led
 {
 	public: 
-	Led(Pin& pin); 
+	Led(Pin *pin_ptr); 
 	~Led(); 
 	
 	void on(); 
@@ -15,7 +16,7 @@ class Led
 	void toggle(); 
 
 	private: 
-	Pin& pin;
+	Pin *pin;
 };
 
 
diff --git a/main.cpp b/main.cpp
index 9f34db6..b9ae02e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,10 +1,10 @@
 #include"main.hpp"
-
+#include"drivers/led/led.hpp"
 
 int main(int argc, char *argv[])
 {
 	Nucleo_f042k6 bsl; 
-	
+
 	bsl.init();
 	while(1)
 	{